settings: add "Learn more about Admin mode" link

src/settings-web/src/components/CustomActionSettingsControl.tsx

@@ -34,6 +34,8 @@ export class CustomActionSettingsControl extends BaseSettingsControl {
           <Label>{this.state.property_values.display_name}</Label>
           : null
         }
+        {
+          <Stack horizontal tokens={{childrenGap:5}}>
             {
               this.state.property_values.value ?
                 <Text styles ={{
@@ -43,6 +45,13 @@ export class CustomActionSettingsControl extends BaseSettingsControl {
                 }}>{this.state.property_values.value}</Text>
                 : <span/>
             }
+            {
+              this.state.property_values.help_link ?
+                this.state.property_values.help_link
+              : <span/>
+            }
+          </Stack>
+        }
         <PrimaryButton
             styles={{
               root: {

src/settings-web/src/components/GeneralSettings.tsx

@@ -149,7 +149,17 @@ export class GeneralSettings extends React.Component <any, any> {
           setting={{
             display_name: '',
             value: 'Running as user. Do you wish to run as administrator instead?',
-            button_text: 'Restart as administrator'
+            button_text: 'Restart as administrator',
+            help_link: <Link
+              styles = {{
+                root: {
+                  alignSelf:'center',
+                  paddingBottom: '0.5em'
+                }
+              }}
+              href={"https://aka.ms/powertoysDetectedElevatedHelp"}
+              target='_blank'
+            >(Learn more about Admin mode)</Link>
           }}
           action_name={'restart_elevation'}
           action_callback={(action_name: any, value:any) => {